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Intro to geospatial

Demystifying spatial

Digital representations of spatial data

1. Vector

2. Raster

Vector data

Raster data

Map projections

Map projections

Projection involves distortion

Map projections

Map projections

Dealing with projections

Raster warping

Raster resampling

Geodetic Datums

Where is lat 34.419, lon -119.699?

Geodetic Datums

Datum: Links coordinates on a reference geoid with actual locations on earth

Using the wrong datum

Data storage formats

Data storage formats -- vectors

Data storage formats -- rasters